Device for stropping razors.



S. L. LONG. DEVICE FOR STROPPIING mzons. APPLIOATION'IILED MAR. 20, 1909.

Patented J My 2, 1912.

2 SHEETS-SHBET 1.

775171655 6; fizz/e12 far: 6/ 1 y 4 A in; fiffor/zey S. L. LONG.

DEVICE FOR STROPPING RAZORS. APPLICATION rum) 14111.29, 1909.

1,031,130. Patented July 2,1912.

'2 SHEETS-SHEET 2.

sinner L. LONG, or mrmvnaroms, mmmisom DEVICE FOR STROPPING RAZORS.

Specification of Letters Patent.

Patented July 2, 1912.

Application filed'flarch 29, 1909. Serial No. 486.352.

To all whom it may concern: I

Be it knownthat I, SIDNEY L. 'LONG, a

citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Devices for Stropping Razors, of which the following is a. specification. I

My invention relates to devices for stropping razors, and particularly so-called safety razors; and its object is to provide a 3 simple, cheap, and efficient stropping device adapted to be successfullyoperated by an unskilled and un'experienced person.

My improvements are illustrated in the accompanying drawings, in which-- Figure 1 is a side elevation of a razor I stropping deviceor machine embodying my screw and thumb nut 3; v The operating mal or inoperative position.

improvements. -Fig. 2 is a vertical lon itudinal sectional view of the device of F g. 1. Fig. 3 is a plan view ofv the same, with the upper strop partly removed. Fig. 4 is an enlarged view of the middle portion of Fig.- 2, with "portions broken away, and showing a razor blade and its holder in norsim'ilar view showing the blade held'in contact with the upper strop. .Fig. 6 is a side elevation, showing the side of the device opposite' that shownin Fig. 1. Figs. 7 and. 8 are detailviews of the cross-.hea'dand its guides employed for actuating the razorholder, showing the, trip for the latter in its 'two extreme positions. Fig. 9is a detailof the cross-head. And Figs.,10, 11, and 12 -are detail views of the razor clamp or holderji v In the drawings 1 designates a frame or casing having two sides and a bottom, but

open at the ends and top, and preferably made of metal; and 2 a handle attached to the bottom of the casing, preferably by a shaft 4 is journaled in the sides near one end of the frame and on the opposite ends of the shaftare crank arms 5'and 6; and the. crank 5 is provided with a handle 7 forturnin the shaft to operate the device. -Between t e latter crank and the casingadriving pulley 8', having two grooves, is secured on the shaft; and belts 9 and 10 extend therefrom. to two pulleys 11 and 12 onv shafts 13 and 14: journaled, one above the other near the other ends of the frame, one ofthe belts, being crossed td' cause the two driven pulleys tgrun in opposite directions.

Fig. 5 is' a.

and the shafts, 13, 14, 15, and 16, are provided with rollers, 17, 18, 19 ,and 20,'on which are arranged the two endless strops 21 and 22, one above the other, '=with a suitable space between their adjacent surfaces for the razor holdin device. It will be apparent that under this! construction the operatlon of the crank shaft will cause the ad.-

jacent belt surfaces-to travel in the sarrle direction.

For convenlence' of access to the interior curved slots 23 are provided 1n the casing Corresponding shafts15 and 16 are journaled near the opposite endlof the casing,

for inserting and removing the ends of the shaft 15- (or the trunnions of the roller 19), so that the upper strop can be readily removed, as indicated in Fig. '3.

Belt tighteners 24 and 25 are provided for the strops, and consist of 'a plate havhaving a slot 26 in-its inner end to receive an adjusting screw 27, and providing a bearing near its outer end for the pulley The razor holder is arranged in the space shaft.

intermediate the-two .strops, and its construction is as follows: A base plate 28 is centrally pivoted to '-the frame, sides by- I means of a rocking'rod 29, and is provided at its'oppositeedges witha pair of inwardly projectlng llps 3,0 for receiving a loose upper plate, or clamp jaw, 31. The razor blade .32 is placed between these two plates or jaws, and the upper jaw is held in place and adapted/to exert the required pressure upon the bla e by a lever 33 pivoted by a pm'tle 34'to 'thelg'aw 31- and provided with, a lateral flange or short lever arm 35 which bears upon thelsurface of the under jaw: 28,

when the longer lever arm is'turned down-- ward, as from the osition shown in Fig 10 to'that shown in ig. 11. As the lips' 30 offer resistance-to the upwardmovement of the pivoted end of the jaw the other end obviously will exert pressure upon the razor blade. By turning the :levertdthdpositioh shown by'broken lines in Fig.1!) the aw. 31 and its lever can lie-"removedforiplacing' or removing the blade. coil spring36', with one endconnected toafstud 37 on't'he frame loo and the other connected to alaterally ex.- 1

tending pin.38 secured to1-the jaw plate 28, serves to hold the clamp and'blade in middle or normal position, asshown in Fig. 4, when the machine is not-in operation.

Forrocking. the clamp or holder to preis. rocations of the cross-head carry the block seiit -t-he blade alternation to the strops,

the 'pin' 38'is projected through a slot39 in the casing I to position to be engaged and i the 'reci' rocations and is connected by a pitman. 42 to the crank-arm 6 'on the driving-shaft, so as to jreciprocate when the'strops are operated.

On the inner side of the cross-head is formed f r-attached a block 43 of rhomboidal shape jand'arran'ged in position to engage the'pin i 3 8'with itsfinclinediends- 44 and thereby raise or lower it tothe plane of the upper orlower surface of. the block. The recip- -43-beyond the points of contact with the pin 38 and when'the latter is thus disengaged the tensionof'the spring 36 upon the. pin

restores itand the clamp itserves'to vibrate p to normal or middle position, and the pin is then in position tobe again engagedand actuated by the block. By these. means the 1 clamp is tilted on its "axis to opposite inclinations and there'heldpredetermined and equal periods, during the movements of the .'block- 43 past the pin or trip 38, and the ;razo r is thus presented in alternation to the aetion'of the upperand lower 'strops' at provided for locking the equal inclinationsand during equal periods .0 operation. To-prevent the strops from run in reverse direction and being cut by t e razor a ratchet and do device 45 is against such reverse movement.

claim and desire to secure by Letters Pat- 1. In adevice for strop'ping razors, the combination withra pair of parallel endless fl same direction, of a razor holder, and -means for causin it ito presentthe blade injalternation to t e action of the adjacent 'strop'surfaces, substantially as set forth;

eoinbination with a'jpair "of parallel endless s trop s, .apa'ir of drums for each strop and mea'ns'fo'r rotating the drums to cause the iadjacent parallel strop .bodies to travel in thel same direction, of a razor holder, and

p, a '3." In {a device .for 'stroppi'ng" razors, the v'. eombination with apair of parallelendlessi adjacent a parallel stropflbodies' to travel in means for: causing it" to present the. blade ,in-

alternation and during equal periods of ope'r'ation tothe actionpof the adjacent. strop surfaces, substantially as setforth. I

strops, a pair of drums for each-stropand means-.for-r'otatlng the drums to cause the thesanie direction, of a razor holder, and

Qmean's for causing it to present the-bladei inalternation and during equal periods of;

riving shaft operation and at like'inclinat-ions to the ae- 1 combination with a pair of parallel endless strops, a pair of drums for'each st-rop and means for rotating the drums to cause the adjacent parallel strop bodies to travel in the same direction, of an oscillatory razorho1der,and connections between it and the stropoperating mechanism for oscillating the holder to present the blade in alternation and during equal periods of operation to the action of the adjacent strop surfaces, substantially asset forth. I I

5.' In a device for stropping razors, the combination with a pair ofparallel endless strops'and means for running them simultaneously in opposite directions, of a pivoted razor holder, a guided cross-head, connections with the strop-driving mechanism for reciprocating the cross-head parallel with thestrops, and connections between the cross-head and razor, holder for oscillating the latter tov resent the blade in alternation to the action of the adjacent strop' surfaces, substantially as set forth.

6. In a device for stroppingrazors, the combination with a pair of parallel endless strops,-a pair of drums for each strop' and means for rotating the drums to cause the adjacent parallel strop bodies to travel in the same direction, of. a pivoted razor holder, a guided cross-head, connections with I l the strop-drivlng mechanism for reciprocat- 7 Having descrlbed my Invention, what I.

ing the cross-head parallel with the strops and connections between the cross-head and razor holder for oscillating the latter'to present the blade at like inclinations and during equal periods of operation and in alternation to the action of the adjacent st-rop surfaces, substantially as set forth.

7. In a device,for stropping razors, the combination witha pairof parallel endless strops and means for running 'them simultaneously in opposite directions, of a pivot- I r ed razor holder, a, guided cross-head, con- .2."In1,adevice for stropplng razors, the

nections with t-he strep-driving mechanism for reciprocating the cross-head parallel with the strops, the cross head providing a ,rhomboidal shaped surface, and a lateral projection provided on the'razor holder arranged in position to be engaged by such cross-head surface for oscillating the holder to. present the blade in alternation to the action of the adjacc'ntstrop surfaces, substa ntially as set forth. v

28;, In a, device, for: 'stropping razors, the

combination wit-ha pair of parallel endless strops and niean'sfor running them'simultaneously in opposite directions, of} a'pivot- [ed razor holder, a guidedcross-head, connections with the strop-driving mechanism for. reciprocating the cross-head. parallel with the strops, connections between the cross-head and razor holder for oscillating the latter to present the blade in alternation to the action of the adjacent strop surfaces,

and a spring for restoring the razor holder. to normal position when not engaged by the them in the same direction along substantially straight courses, of a razor holder, and means for causing it to present the blade in alternation and during equal periods of operation to the action of the adjacent strop surfaces, substantially as set forth.

10. In a device for strapping razors, the combination with a pair of parallel endless strops, a pair of drums for each strop and means for rotating the drums to cause the adjacent parallel. strop bodies to travel in the same direction, of an'osoillatory razor holder, eminections between it and the strop operating mechanism for oscillating the holder to present the blade in alternation and during equal periods of operation to the action of the adjacent strep surfaces, and means operating automatically for restoring the razor holder to normal position, substantially as setforth.

In testimony whereof I have signed my name to this specification in the presence'of two subscribing witnesses this 20th day of March, 1909.

SIDNEY L. LONG.

Vvitnesses r F. B. A'rwoon,

Gno. E. YOUNG. 

